JP2014001005A - Container with opening part protection structure capable of detecting illegal opening - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a container with an opening part protection structure that is adaptive to packaging of a product unsuitable to a heat treatment after charging and low in manufacturing cost, and facilitates installation and opening of a lid and has an illegal opening detecting function.SOLUTION: There is provided a container such that a container body 1 includes a bottomed cylindrical article housing part 1a, a flange part 1b provided to an outer periphery of an opening part, a substantially cylindrical protection member 1c stood on an upper surface of the flange part 1b axially through a bridge part 1h and covering a side face of a lid body 2, and a first engagement part provided to an inner periphery of the opening part, and the lid body 2 includes a circular upper surface part, a cylindrical part 2b extended downward from a periphery of the upper surface part, and a second engagement part provided at a lower end outer periphery of the cylindrical part 2b and engaging the first engagement part, wherein a diameter of an inner peripheral surface of the protection member 1c is nearly equal to a maximum diameter of an outer peripheral surface of the cylindrical part 2b of the lid body 2 to enable mutual rotation and when the lid body 2 is installed, an upper surface of the protection member 1c is equal or larger in height than the upper surface of the lid body 2.

Description

  The present invention relates to a container opening protection structure capable of detecting unauthorized opening, and more particularly to a technique of integrally providing a protective member that covers a lid when molding a synthetic resin container.

  In order to prevent the act of illegally opening the container and filling the inside after the product is filled, a protective member that covers the opening of the container is provided and the protective member is not destroyed so that the container cannot be opened. Detection of opening is performed. As an example of such an opening protection structure, there is one in which the entire container and the periphery of the lid are covered with a heat-shrinkable film and heated so that they cannot be opened unless a part of the film is cut off.

  Japanese Patent Application Laid-Open No. 59-199451 discloses a protective structure for an opening for a container for medicines and foods, in which an overcap provided with an annular cut line is formed after a snap-type main cap is plugged into the opening of the container. It discloses that frictional fusion is performed on the shoulder of the container to enable detection of unauthorized opening (Example 4, FIG. 16 and the like). However, since a special device is required to attach the protective member, and the protective member is thermally welded after filling the product, it is difficult to use as a protective container for products that require strict temperature control, such as pharmaceutical ampoules. It was a thing.

  As an opening protection structure in which heat treatment is not performed after filling the product, for example, a protective member is provided at the lower part of the lid via an annular weakened portion, and the protrusion on the inner surface of the protective member is joined to the protrusion on the outer periphery of the container at the time of stoppering In this way, the lid cannot be removed unless the protective member is removed, or when the screw-type lid is removed, the protective member remains around the opening of the container to detect unauthorized opening. Things are known.

  Japanese Patent Application Laid-Open No. 11-1251 is a screw-type safety cap that covers a mouth portion of a container, and includes a lid main body, an opening detection band that is molded separately from the lid main body and is thermally welded to the lid main body in advance. In this case, the unsealing detection band is left on the shoulder of the container after the safety cap is turned and removed. Japanese Patent Laid-Open No. 9-58719 discloses a snap-type synthetic resin cap that is externally fitted to a bottle mouth, and is provided with an opening detection band and a knob via a cleavable bridge at the bottom of the cap. It is disclosed that the cap cannot be removed unless the opening detection band is removed.

JP 59-199451 A JP-A-11-1251 JP-A-9-58719

  In the conventional opening protection structure in which the protective member is provided on the lid of the container, it is necessary to deform the protective member to get over the expanded diameter portion of the container when the product is filled and the lid is installed. Therefore, there is a problem that the lid body must have a complicated structure and the moldability is deteriorated.

  In addition, a screw-type lid as disclosed in Japanese Patent Laid-Open No. 11-1251 is expensive to manufacture compared to a snap-type lid and requires a lot of work for installation in a container, while Japanese Patent Laid-Open No. 9-58719. However, the opening detection band as described above has a problem that it is necessary to separate the opening detection band by raising the knob before opening the lid.

  The first object of the present invention is to provide a container opening protection structure capable of detecting tampering, which does not require heat treatment after filling with a product and does not require a complicated cover. .

  The present invention also provides an opening protection structure in which it is not necessary to provide a screw portion with high manufacturing cost, and both the protection member and the lid can be easily removed even during use, and in particular, a snap-type lid is provided. It is an object of the present invention to provide an opening protection structure that provides a double protection structure that provides opening detection to the opening and protects the lid from impact.

  The invention described in claim 1 includes a container body made of a synthetic resin and a lid fitted inside the opening of the container body. The container body includes a bottomed cylindrical article storage portion and an outer periphery of the opening. A substantially cylindrical protective member erected in the axial direction on the upper surface of the collar portion via a bridge portion, and a first engagement portion provided on the inner periphery of the opening portion. The lid body is provided with a circular upper surface portion, a cylindrical portion having substantially the same diameter as the inner diameter of the protective member, and provided on the outer periphery of the lower edge of the cylindrical portion and engages with the first engaging portion. A second engaging portion, and the diameter of the inner peripheral surface of the protection member is substantially equal to the maximum diameter of the outer peripheral surface of the cylindrical portion of the lid, and can be mutually rotated. Sometimes the above problem is solved by a container in which the upper surface of the protective member is at the same height or higher than the upper surface of the lid. (Note that the terms “upper” and “lower” indicate the orientation of each part when the container is placed with the opening facing up.)

  In other words, the container of the present invention includes a snap-type lid that is fitted into the opening of the container body, and a protective member that can be molded integrally with the container body to protect the side surface of the lid. A collar is provided on the outer periphery of the opening, and a substantially cylindrical protective member is erected on the upper surface of the collar via a bridge. Therefore, the protective member is structurally strong against an axial impact, and after the product is filled, the protective member is loosely fitted with the lid, so that it can withstand the radial impact and protect the snap-type lid from external force.

  Since the protective member has a cylindrical shape and is open at the top, the manufacturer of the product can fill the container with the product with the protective member and install the lid. Since the upper surface of the protective member is at a level equal to or higher than the upper surface of the lid, once the lid is installed, the lid cannot be operated unless the protective member is removed. Opening is prevented. Since the lid and the protection member can be rotated relative to each other, the consumer can easily shear and remove the bridge by twisting the protection member with respect to the container body. When the protective member is removed, the side surface of the cylindrical portion of the lid body appears and the lid body can be removed.

  The container body and the lid are snap-coupled by the interaction of the first and second engaging parts, and it is not necessary to provide a threaded part. Therefore, the material cost is low and manufacturing is easy, compared to the screw-type lid. Installation and removal of the lid is easy. For secure connection, it is preferable that the first engagement portion of the container body is an annular groove and the second engagement portion of the lid body is an annular enlarged diameter portion.

  According to a third aspect of the present invention, in the container, the outer periphery of the cylindrical portion of the lid body includes a small diameter portion that engages with the opening portion of the container body, a large diameter portion that protrudes from the opening portion, and both. The container body is provided with an annular notch facing the annular surface, and the lid body rotates relative to the container body between the annular surface and the annular notch. A cam mechanism for guiding the upper part is provided in the upper part.

  The consumer can easily remove the cover body by urging the cover body in the detaching direction by twisting the cover body and contacting the opposing protrusions. Therefore, the protective member and the lid can be removed by a similar twisting operation, and even if the protective member and the lid are provided with a double protective structure, the protective member and the lid are not confused during use. Since the removed lid can be installed in the opening again, it is convenient for storing the product in use and discarding the used container.

  The annular surface of the lid of the container body may include a plurality of cam driven protrusions at equal angular intervals, and the annular cutout may include a smaller number of cam protrusions than the cam driven protrusions at positions corresponding to the cam driven protrusions. By the action of the plurality of cam protrusions or cam follower protrusions, the cam can be operated by slightly twisting the lid and the container main body, and the removal becomes even easier. Further, the plurality of cam protrusions are provided and act simultaneously, so that the lid can be removed more reliably. If the number of adjacent cam protrusions less than the number of driven protrusions is provided, a force can be applied to a certain range on the periphery of the cylindrical portion of the lid, and the lid can be easily removed by inclining.

Top view of the container body according to the present invention Side view of the container body of FIG. Side view of the lid according to the present invention Sectional view and bottom view of the lid of FIG. The fragmentary sectional view which shows the installation method of the cover body of the container of this invention The fragmentary sectional view which shows the state in which the cover body of the container of this invention was installed

  Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. In the figure, 1 is a container main body including a protective member, and 2 is a lid body fitted into the opening of the container main body 1, and each is integrally formed of a thermoplastic synthetic resin.

  1 and 2 show a top view and a side view of a container body 1 having a protective member. The container body 1 includes a bottomed cylindrical article housing portion 1a and an annular collar portion 1b provided outward on the outer periphery of the opening, and is further provided on the upper surface of the collar portion 1b at intervals of 60 °. Further, a thick, substantially cylindrical protective member 1c is erected via six bridges 1h. The outer diameter of the collar 1b is the same as or slightly larger than the outer diameter of the protective member 1c. The bridge 1h withstands an axial force, but has a strength that allows the container body and the protective member to be relatively easily broken by forces that twist the container body and the protective member in opposite directions. A reinforcing projection 1m is provided between the bridges 1h.

  On the outer periphery of the protective member 1c, there are provided four grips 1f that are cut out into a substantially cylindrical shape and finely concavo-convexly processed so that a finger can be easily applied at the time of opening. Further, horizontal grooves 1g for weight reduction and material saving are provided in four stages each in a range of a little less than 90 ° around the position of each grip 1f in plan view. Since there is a columnar shape between adjacent horizontal grooves 1g, it is desirable to provide a reinforcing protrusion for maintaining strength when the bridge 1h does not exist below.

  3 and 4 (a) and 4 (b) show a side view, a cross-sectional view, and a bottom view of the lid body 2. FIG. The lid body 2 includes a circular upper surface portion 2a and a cylindrical portion 2b. The cylindrical portion 2b has an upper large diameter portion having a diameter substantially the same as or slightly smaller than the inner diameter of the protective member 1c, and a slightly smaller diameter. It is divided into small diameter parts on the lower side. An annular surface 2g is formed at the boundary between the large diameter portion and the small diameter portion of the cylindrical portion 2b. An annular enlarged diameter portion 2c that engages with the annular groove 1d of the container mouth is provided on the outer periphery of the lower edge of the small diameter portion.

  On the outer periphery of the large-diameter portion of the cylindrical portion 2b of the lid 2, six wide vertical ridges 2d are provided every 60 ° so that the consumer can easily grip when opening the lid. Three narrower protrusions 2g are provided at regular intervals between the wider protrusions 2f. Reference numeral 2c denotes an annular diameter-expanded portion that is connected to the container body in a snap-type manner, and reference numeral 2e denotes a cylindrical portion that presses the packing material when the product is filled.

  5 and 6 show the positional relationship between each part of the container body 1 and the lid 2 before and after the lid is installed. The upper part of the article storage part 1a of the container body 1 and the inner periphery of the protection member 1c are substantially complementary to the outer periphery of the cylindrical part 2b of the cover body 2, and the cover body is provided on the upper inner periphery of the article storage part 1a. An annular groove 1d connected to the two enlarged diameter portions 2c is provided. After the installation of the lid, as shown in FIG. 6, the annular surface 2h of the lid 2 is at a height corresponding to the upper surface of the collar 1b of the container body, but further downward on the inner peripheral surface of the container body. An annular notch 1k for accommodating a cam mechanism described later is provided.

  In this embodiment, a cam projection 1e is provided inside the annular cutout portion 1k of the container body 1, and a cam driven projection 2d is provided from the annular surface 2h of the lid body 2 to the small diameter portion 2b2. When the lid 2 is rotated with respect to the container body 1 and the cam projection 1e and the cam driven projection 2d are aligned, the cam driven projection 2d rides on the upper surface of the cam projection 1e and urges the lid upward. Since the engagement between the annular groove 1d and the annular enlarged diameter portion 2c is released, the lid body 2 can be easily detached from the container body 1.

  By providing a plurality of cam projections 1e or cam follower projections 2d, the rotation angle required for removing the lid 2 can be adjusted. In the present embodiment, the cam follower protrusions 2d are respectively provided at the lower portions of the six wide protrusions 2d. Therefore, the cover body can be removed by twisting the cover body 2 by a maximum of 60 °. The number of cam protrusions 1e on the container body 1 side may be one, or two or more may be provided to simultaneously act on the plurality of cam driven protrusions 2d of the lid 2. In the present embodiment, four cam protrusions 1e are provided corresponding to four adjacent ones (positions of 0 °, 60 °, 120 °, and 180 °) of the six cam driven protrusions 2d, and these are provided at the same time. By applying it, a detaching force is applied to a wide range, and the entire lid is tilted so that it can be easily removed. The cam protrusion 1e is arranged so as to alternate with the bridge 1h in consideration of moldability and the like.

  If the cam mechanism is not provided between the container body 1 and the lid body 2, the cylindrical portion 2b is deformed by pushing and tilting the side surface of the cylindrical portion 2b of the lid body 2 so that the annular groove 1d and the annular enlarged diameter portion are formed. It is also possible to disengage 2c and remove it.

  When packaging a product (for example, a pharmaceutical ampule) using this container, the manufacturer arranges the container body 1 provided with the protective member 1c so that the opening is on the top, and the completed ampule is a necessary packing material. And filling from the opening. When the cylindrical portion 2b of the lid body 2 is inserted into the opening after the filling is completed, the cylindrical portion 2b and the protective member 1c are loosely fitted, and the cylindrical portion 2b is naturally introduced into the correct position, and the lower end of the small diameter portion is It becomes a shape that is placed on the lower surface of the annular notch 1k of the container body. Thereafter, when pressure is applied to the upper surface portion 2a of the lid body 2, the annular groove 1d and the annular enlarged diameter portion 2c are engaged, and the installation of the lid body is completed.

  As described above, in order to remove the lid 2, it is necessary to apply a force to the side surface of the cylindrical portion 2 b to rotate or incline it with respect to the container body. However, the upper surface portion 2 a of the lid body 2 Since the entire side surface of the cylindrical portion 2b is covered with the protective member 1c, the lid 2 cannot be removed unless the protective member 1c is removed. Further, since the outer periphery of the protective member 1c is covered by the collar portion 1b and the inner periphery is in a relationship of fitting with the lid 2 and reinforcing each other, there is little possibility of coming off due to an impact during transportation.

  When the consumer twists the protective member 1c with respect to the container body 1a, the bridge 1h is torn by shearing force, and the protective member 1c is loosely fitted onto the cylindrical portion 2b of the lid 2 and can be removed. When the cylindrical portion 2b of the lid 2 is twisted after removing the protective member 1c, the cam mechanism is actuated to disengage the annular groove 1d from the annular enlarged portion 2c, and the lid is the container body. Deviate from. The consumer can remove both the protective member 1c and the lid 2 by a simple twisting operation, and there is no need to turn the knob many times or cause a knob portion to remove the screw. It is.

  The lid can be re-installed if the product is not used completely after opening, but even if a third party opens the lid and closes the lid again, the consumer can remove the protective member 1c or break the bridge 1h. By doing so, you can notice tampering.

  The above example is an example of the embodiment and does not limit the scope of rights. The shape of the container can be various, and in order to facilitate the molding and operation of each part, the detailed shape of the protective member 1b and the cylindrical part 2b, the shape, number and the like of the bridge, the reinforcing member, the cam member, etc. Arrangement etc. can be changed suitably.

  The container equipped with the tamper-evident protection structure of the present invention is unprecedented, such as being able to handle packaging of products that are not suitable for heat treatment after filling, low in production cost, easy to install and open the lid, Large demand is expected.

DESCRIPTION OF SYMBOLS 1 Container main body 1a Product accommodating part 1b Brim part 1c Protection member 1d Annular groove 1e Cam member 1f Grip 1g Horizontal groove 1h Bridge 1k Annular notch 1m Reinforcing protrusion 2 Lid 2a Top surface part 2b Cylindrical part 2b1 Large diameter part 2b2 Small diameter Part 2c annular enlarged diameter part 2d cam follower projection 2f wide protrusion part 2g narrow protrusion part 2h annular surface

Claims (4)

  It consists of a container body made of a synthetic resin and a lid fitted inside the opening of the container body, the container body is a bottomed cylindrical article housing portion, and a collar portion provided on the outer periphery of the opening, A substantially cylindrical protective member that stands in the axial direction on the upper surface of the collar portion via the bridge portion and covers the side surface of the lid, and a first engagement portion provided on the inner periphery of the opening portion And the lid is provided with a circular upper surface portion, a cylindrical portion extending downward from the periphery of the upper surface portion, and an outer periphery of a lower edge of the cylindrical portion, and is engaged with the first engagement portion. A second engaging portion, and the diameter of the inner peripheral surface of the protection member is substantially equal to the maximum diameter of the outer peripheral surface of the cylindrical portion of the lid, and can be mutually rotated. Sometimes a container in which the upper surface of the protective member is at a level equal to or higher than the upper surface of the lid.   The container according to claim 1, wherein the first engaging portion is an annular groove, and the second engaging portion is an annular enlarged portion.   The outer periphery of the cylindrical portion of the lid includes a small diameter portion that engages with the opening of the container main body, a large diameter portion that protrudes from the opening, and an annular surface that connects the two, An annular notch facing the annular surface is provided, and a cam mechanism is provided between the previous annular surface and the annular notch for guiding the lid upward when the lid rotates with respect to the container body. The container according to claim 1 or 2, wherein   The annular surface of the lid of the container body has a plurality of cam driven projections at equiangular intervals, and the annular notch has a smaller number of cam projections at positions corresponding to the cam driven projections than the cam driven projections. 4. A container according to claim 3.

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